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Swift教程_swift常见问题（0005）_完美解决Cannot override 'dealloc'异常

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问题描述：

swift已经移除了dealloc()方法，所以如果重写的话会报：

Cannot override 'dealloc' which has been marked unavailable

解决方案：

swift使用析构方法进行类似dealloc的操作。析构方法和构造方法相对，分别为deinit和init。

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